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form_win (3X)                                                                                    form_win (3X)



NAME
       form_win - make and break form window and subwindow associations

SYNOPSIS
       #include <form.h>
       int set_form_win(FORM *form, WINDOW *win);
       WINDOW *form_win(const FORM *form);
       int set_form_sub(FORM *form, WINDOW *sub);
       WINDOW *form_sub(const FORM *form);
       int scale_form(const FORM *form, int *rows, int *columns);

DESCRIPTION
       Every  form  has an associated pair of curses windows.  The form window displays any title and border
       associated with the window; the form subwindow displays the items of  the  form  that  are  currently
       available for selection.

       The  first  four  functions  get and set those windows.  It is not necessary to set either window; by
       default, the driver code uses stdscr for both.

       In the set_ functions, window argument of NULL is treated as though it were stsdcr.  A form  argument
       of NULL is treated as a request to change the system default form window or subwindow.

       The function scale_form returns the minimum size required for the subwindow of form.

RETURN VALUE
       Routines  that  return  pointers return NULL on error.  Routines that return an integer return one of
       the following error codes:

       E_OK The routine succeeded.

       E_SYSTEM_ERROR
            System error occurred (see errno).

       E_BAD_ARGUMENT
            Routine detected an incorrect or out-of-range argument.

       E_POSTED
            The form has already been posted.

       E_NOT_CONNECTED
            No items are connected to the form.

SEE ALSO
       curses(3X), form(3X).

NOTES
       The header file <form.h> automatically includes the header file <curses.h>.

PORTABILITY
       These routines emulate the System V forms library.  They were not supported on Version 7 or BSD  ver-sions. versions.
       sions.

AUTHORS
       Juergen Pfeifer.  Manual pages and adaptation for new curses by Eric S. Raymond.



                                                                                                form_win(3X)